The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2026
Filed:
Dec. 27, 2022
Pixieray Oy, Espoo, FI;
Klaus Melakari, Espoo, FI;
Pixieray Oy, Espoo, FI;
Abstract
Disclosed is an optical element with a first substrate and a second substrate. A cavity is formed between first substrate and second substrate; a material, wherein liquid state of material has refractive index that matches refractive index of at least one of: first substrate, second substrate; a liquid reservoir that is to be employed to hold liquid state; a gas reservoir that is to be employed to hold a gaseous state of the material; means for converting gaseous state into liquid state; fluid channel(s) connecting cavity to liquid reservoir and to gas reservoir; and means for controlling supply of liquid state to cavity through fluid channel(s) and for controlling replacement of liquid state with the gaseous state in cavity, wherein given optical power is produced by optical element when cavity is filled with gaseous state.